<template>
  <div>
     <!--2.为Echarts准备一个Dom -->
    <el-row>
      <el-col :span="16">
        <div id="main" style="width: 1000px;height:600px;"></div>
      </el-col>
      <el-col :span="6">
        <p>欢迎和贾婷婷一起学习讨论</p>
      </el-col>
    </el-row>
  </div>
</template>
<!--<script>
  // 1.导入echarts
  import echarts from 'echarts'

  export default {
    // 此时,页面上的元素,已经被渲染完毕了
    async mounted () {
      // 3.基于准备好的dom，初始化echarts实例
      var myChart = echarts.init(document.getElementById('main'))
      // 4.准备数据项和配置项
      // 指定图表的配置项和数据
      var option = {
        legend: {},
        tooltip: {
          trigger: 'axis',
          showContent: false
        },
        dataset: {
          source: [
            ['product', '2012', '2013', '2014', '2015', '2016', '2017'],
            ['Matcha Latte', 41.1, 30.4, 65.1, 53.3, 83.8, 98.7],
            ['Milk Tea', 86.5, 92.1, 85.7, 83.1, 73.4, 55.1],
            ['Cheese Cocoa', 24.1, 67.2, 79.5, 86.4, 65.2, 82.5],
            ['Walnut Brownie', 55.2, 67.1, 69.2, 72.4, 53.9, 39.1]
          ]
        },
        xAxis: { type: 'category' },
        yAxis: { gridIndex: 0 },
        grid: { top: '55%' },
        series: [
          { type: 'line', smooth: true, seriesLayoutBy: 'row' },
          { type: 'line', smooth: true, seriesLayoutBy: 'row' },
          { type: 'line', smooth: true, seriesLayoutBy: 'row' },
          { type: 'line', smooth: true, seriesLayoutBy: 'row' },
          {
            type: 'pie',
            id: 'pie',
            radius: '30%',
            center: ['50%', '25%'],
            label: {
              formatter: '{b}: {@2012} ({d}%)'
            },
            encode: {
              itemName: 'product',
              value: '2012',
              tooltip: '2012'
            }
          }
        ]
      }

      myChart.on('updateAxisPointer', function (event) {
        var xAxisInfo = event.axesInfo[0]
        if (xAxisInfo) {
          var dimension = xAxisInfo.value + 1
          myChart.setOption({
            series: {
              id: 'pie',
              label: {
                formatter: '{b}: {@[' + dimension + ']} ({d}%)'
              },
              encode: {
                value: dimension,
                tooltip: dimension
              }
            }
          })
        }
      })
      // 数据合并
      //  const result = _.merge(res.data, this.options)
      // 5.展示数据
      myChart.setOption(option)
    }
  }
</script>

<style>
  div{
    margin: 0;
    padding: 0;
  }
</style>-->
